I had play Bones of arnor with my friend for a while and save at the last chapter. After steam auto update last week. I load my saved game and everything goes well until new turn begin and autosave. It stuck at auto saving and I had to close the game. I tried load the savedata again and it stuck at auto saving again. I loaded again and did nothing, just crick save and exit. This time it stuck at black screen.

Also I tried to start a new game. Everything went normal. But I don't want to play the whole campaign again.